Digital Commons Network^™

Buckling, Postbuckling And Imperfection Sensitivity Analysis Of Different Type Of Cylindrical Shells By Hui's Postbuckling Method, Hailan Xu

LSU New Orleans Theses and Dissertations

Hui and Chen (1986) were the first to show that the well-known Koiter’s General Theory of Elastic Stability of 1945 can be significantly improved by evaluating the postbuckling b coefficient at the actual applied load, rather than at the classical buckling load. Such improvement method was demonstrated to be (1) very simple to apply with no tedious algebra, (2) significant reduction in imperfection sensitivity and (3) although it is still asymptotically valid, there exists a significant extension of the range of validity involving larger imperfection amplitudes. Strictly speaking, Koiter’s theory of 1945 is valid only for vanishingly small imperfection amplitudes. …

Under The Pomegranate Tree, Aneela Shuja

LSU New Orleans Theses and Dissertations

Mina is a young girl in a rural village called Tobay in Pakistan when her only friend Dhaaga, a family servant around her age, suddenly leaves. After a betrayal by her father’s second, much younger wife, Mina starts her long journey. She becomes a prostitute in Heera Mandi, the famed red light district of Lahore, and unexpectedly finds friends in a nearby transvestite brothel. Mina suddenly ends up with her life in danger when she tries to take revenge on the man who ruined Dhaaga’s life. She gets help from a human rights lawyer and escapes to safety in America …

Toni Morrison’S Depiction Of Beauty Standards In Relation To Class, Politics Of Respectability, And Consumerism In Song Of Solomon, Karen Jensen

LSU New Orleans Theses and Dissertations

In Song of Solomon, published during a transitional moment in the history of U.S. feminism, Toni Morrison portrays the destructive forces of hegemonic female beauty standards, materialism, and consumerism in a Midwestern African-American community from the 1930s to the 1960s. She reveals a hierarchy in which men define standards of beauty and respectability that enforce white bourgeois ideals. Focusing on five female characters, this thesis examines this hierarchy; the agents who maintain it; and the ways in which it affects female characters who accept and/or reject it. While one of the characters, Hagar, perishes in her attempt to live …

Categorization Of Large Corpora Of Malicious Software, Deekshit Kura

LSU New Orleans Theses and Dissertations

Malware is computer software written by someone with mischievous or, more usually, malicious and/or criminal intent and specifically designed to damage data, hosts or networks. The variety of malware is increasing proportionally with the increase in computers and we are not aware of newly emerging malware. Tools are needed to categorize families of malware, so that analysts can compare new malware samples to ones that have been previously analyzed and determine steps to detect and prevent malware infections.

In this thesis, I developed a technique to catalog and characterize the behavior of malware, so that malware families, the level of …

Anion-Peptide Adduct Formation And Decomposition As Studied By Fourier Transform Ion Cyclotron Resonance (Ft-Icr) Mass Spectrometry, Xiaohua Liu

LSU New Orleans Theses and Dissertations

A new “best match” match model has been developed to account for adduct formation on multiply charged peptides observed in negative ion electrospray mass spectrometry. To obtain a stable adduct, the model necessitates an approximate matching of apparent gas-phase basicity (GBapp) of a given proton bearing site on the peptide with the gas-phase basicity (GB) of the anion attaching at that site. Evidence supporting the model is derived from the fact that singly charged adducts were only observed for lower GB anions: HSO₄^-, I^-, CF₃COO^-. Ions that have medium GBs (NO …

Big Five Personality Traits, Pathological Personality Traits, And Psychological Dysregulation: Predicting Aggression And Antisocial Behaviors In Detained Adolescents, Katherine S. L. Lau

LSU New Orleans Theses and Dissertations

This study tested the utility of three different models of personality, namely the social and personality model, the pathological personality traits model, and the psychological dysregulation model, in predicting overt aggression, relational aggression, and delinquency in a sample of detained boys (ages 12 to 18; M age = 15.31; SD = 1.16). Results indicated that the three personality approaches demonstrated different unique associations with aggression and delinquency. The psychological dysregulation approach, composed of behavioral dysregulation, emotional dysregulation, and cognitive dysregulation, emerged as the overall best predictor of overt aggression, relational aggression, and delinquency. After controlling for the Big Five personality …

An Examination Of The Perceptions Of Educational Leaders On The Ensuring Literacy For All Initiative’S Impact On Student Reading Achievement In Louisiana, Khanh Kim Nguyen-Dufour

LSU New Orleans Theses and Dissertations

The purpose of this qualitative phenomenological study was to examine the experiences of Louisiana’s Ensuring Literacy For All (ELFA) initiative from the perspective of

educational administrators in order to identify: (a) the factors within ELFA that contributed to student reading performance; (b) the effects of the perceptions of ELFA administrators on student achievement; and (c) the components of effective leadership that attributed to the success of ELFA implementation. Bandura‘s (1993) socio-psychological theory of self efficacy was used to frame this study, which included six ELFA administrators from the state, district, and school level. The five findings of this study revealed …

Two Essays In Empirical Asset Pricing, Abdullah M. Noman

LSU New Orleans Theses and Dissertations

The dissertation consists of two essays. The first essay investigates the ability of prior returns, relative to some aggregate market returns, to predict future returns on industry style portfolios. By pooling time series of returns across industries for the period between July 1969 and June 2012, we find that prior returns differential predicts one month ahead returns negatively, even in the presence of a set of popular state variables. The predictability remains significant and negative for up to 5 month ahead returns. The predictability is shown to be robust to alternative specifications, estimation methodology and industry classifications. A possible explanation …

The Effects Of Ecological Context And Individual Characteristics On Stereotyped Displays In Male Anolis Carolinensis, Catherine Policastro

LSU New Orleans Theses and Dissertations

Displays are ubiquitous throughout the animal kingdom. While many have been thoroughly documented, the factors affecting the expression of such displays are still not fully understood. We tested the hypotheses that display production would be affected by ecological context (i.e. the identity of the receiver) and intrinsic qualities of the signaler (i.e. heavyweight and lightweight size class) in the green anole lizard, Anolis carolinensis. Our results supported these predictions and show that a) ecological context, specifically displaying to conspecifics, has the greatest impact on display production; b) size class influenced display rate with heavyweight males displaying more to green …

The Interaction Of Post-Partum Depression And Maternal Knowledge Of Infant Development On Change In Sensitive And Responsive Parenting During Early Infancy, Julie Weiss

LSU New Orleans Theses and Dissertations

Sensitive and responsive parenting during early infancy is highly understudied, particularly in families with a low socioeconomic status. Longitudinal data from 41 mothers and their 4 to 16 week old infants found that accurate maternal knowledge of infant development positively affected parenting contemporaneously and over time while depression did not affect parenting in this sample. Implications for intervention and research are discussed.

Dynamic User Defined Permissions For Android Devices, Christopher D. Stelly

LSU New Orleans Theses and Dissertations

Mobile computing devices have become an essential part of everyday life and are becoming the primary means for collecting and storing sensitive personal and corporate data. Android is, by far, the dominant mobile platform, which makes its permissions model responsible for securing the vast majority of this sensitive data.

The current model falls well short of actual user needs, as permission assignments are made statically at installation time. Therefore, it is impossible to implement dynamic security policies that could be applied selectively depending on context. Users are forced to unconditionally trust installed apps without means to isolate them from sensitive …

Wave Transformation At A Saltmarsh Edge And Resulting Marsh Edge Erosion: Observations And Modeling, Kevin J. Trosclair

LSU New Orleans Theses and Dissertations

This study examines wind generated waves during winter storms, their transformation/attenuation near the marsh edge, and the resulting saltmarsh edge erosion. A simple numerical model for wave generation, transmission and marsh edge erosion was developed and validated against observations from Lake Borgne, Louisiana. Results suggest that meteorological conditions modify the local water depth via wind or wave setup and atmospheric pressure, thus exerting a first order control on the location of wave attack, which in turn determines the type of wave forces (shear vs. impact) that dominate the erosion process. Scarp failure follows, at a location determined by water level, …

Semantic Services For Enterprise Data Exchange, James A. Sauvinet

LSU New Orleans Theses and Dissertations

Data exchange between different information systems is a complex issue. Each system, designed for a specific purpose, is defined using a vocabulary of the specific business. While Web services allow interoperations and data communications between multiple systems, the clients of the services must understand the vocabulary of the targeting data resources to select services or to construct queries. In this thesis we explore an ontology-based approach to facilitate clients’ queries in the vocabulary of the clients’ own domain, and to automate the query processing. A governmental inter-department data query process has been used to illustrate the capability of the semantic …

A Multi-Gene By Environment Perspective Of Adhd Symptomatology In Young Children, Amber L. Allison

LSU New Orleans Theses and Dissertations

Attention deficit hyperactivity disorder (ADHD) is a heritable disorder, which has detrimental effects on childhood development and is associated with maladaptive functioning in adulthood. Despite this, we are far from an understanding of the etiology and possible trajectories of ADHD, possibly due to investigations focusing on the contribution of single genes. In fact, single genes are likely not influential enough to alter behavior, but the additive effect of many genes may predispose an individual toward certain behaviors. Further, environmental input can activate or suppress genetic expression, thereby leading to vast individual differences in both normative behavior and psychopathological illness, including …

Assessing The Responses Of Adult, Juvenile, And Larval Fish Assemblages To The Closure Of The Mississippi River Gulf Outlet, An Artificial Tidal Pass In Southeastern Louisiana, Rebecca Weatherall Cope

LSU New Orleans Theses and Dissertations

The creation of the Mississippi River Gulf Outlet (MRGO) in 1963 by the U.S. Army Corps of Engineers (USACE) represents one of the most catastrophic, anthropogenic stressors ever to impact the Lake Pontchartrain estuary in southeastern Louisiana, USA. The artificial tidal pass provided a direct route from the Gulf of Mexico to New Orleans. It allowed for high saline waters to enter Lake Pontchartrain, resulting in detrimental changes to the biotic community of the Lake and surrounding wetland areas. In July 2009, the USACE closed the MRGO in hopes of restoring natural ecosystems. This study assesses changes in the adult, …

Techniques For The Visualization Of Positional Geospatial Uncertainty, Brent A. Barré

LSU New Orleans Theses and Dissertations

Geospatial data almost always contains some amount of uncertainty due to inaccuracies in its acquisition and transformation. While the data is commonly visualized (e.g. on digital maps), there are unanswered needs for visualizing uncertainty along with it. Most research on effectively doing this addresses uncertainty in data values at geospatial positions, e.g. water depth, human population, or land-cover classification. Uncertainty in the data’s geospatial positions themselves (positional uncertainty) has not been previously focused on in this regard. In this thesis, techniques were created for visualizing positional uncertainty using World Vector Shoreline as an example dataset. The techniques consist of a …

Utilizing Economic And Environmental Data From The Desalination Industry As A Progressive Approach To Ocean Thermal Energy Conversion (Otec) Commercialization, Michael R. Eller

LSU New Orleans Theses and Dissertations

Ocean Thermal Energy Conversion (OTEC) is a renewable energy technology that has to overcome several key challenges before achieving its ultimate goal of producing baseload power on a commercial scale. The economic challenge of deploying an OTEC plant remains the biggest barrier to implementation. Although small OTEC demonstration plants and recent advances in subsystem technologies have proven OTEC’s technical merits, the process still lacks the crucial operational data required to justify investments in large commercial OTEC plants on the order of 50-100 megawatts of net electrical power (MWe-net). A pre-commercial pilot plant on the order of 5-10 MWe-net is required …

The Streets Are Talking: The Aesthetics Of Gentrification In Two Downriver New Orleans Neighborhoods, Tara E. Foster

LSU New Orleans Theses and Dissertations

Since the 1970s, when neoliberal policies and changing consumer patterns began remaking cities, scholars have conducted research about gentrification. In New Orleans, these studies have helped explain the demographic and economic shifts in some neighborhoods. However, there has been limited focus on the built environment aspects of gentrification in New Orleans, specifically the interpretation of the external aesthetic shifts in streetscapes as part of the gentrification process. This thesis examines the relationship between these aesthetics, primarily graffiti and street art, and the gentrification process, as perceived by various stakeholders in two New Orleans neighborhoods: St. Roch and Bywater. Using empirical, …

Llave, Brenda M. Reagan

LSU New Orleans Theses and Dissertations

No abstract provided.

Bacteria And Politics: The Application Of Science To The Yellow Fever Crisis In Reconstruction New Orleans, Polly M. Rolman-Smith

LSU New Orleans Theses and Dissertations

The emergence of germ theory during the nineteenth century transformed Western medicine. By the 1870s, public health officials in the American South used germ theory to promote sanitation efforts to control public health crises, such as yellow fever epidemics. Before the discovery of mosquito transmission of yellow fever, physicians of the late nineteenth century believed the disease was spread by a highly contagious germ. Prominent medical practitioners of New Orleans, such as Confederate Army veteran Dr. Joseph Jones, used available scientific knowledge and investigation to attempt to control yellow fever during the Reconstruction period, a period rife with political and …

High Resolution X-Ray Diffraction Analysis Of Cb1 Receptor Antagonists As A Means To Explore Binding Affinity, Steven P. Fournet

LSU New Orleans Theses and Dissertations

Abstract

Charge density studies have been conducted on ten CB₁ cannabinoid receptor antagonists via high resolution x-ray crystallography. Bond critical point values and various other properties derived from these studies including the electrostatic potential were analyzed in correlation to the affinity of each compound with the CB₁ receptor. Correlation/anti-correlation was found between several properties and K_i. The data was also interpreted by principal component analysis with three principal components accounting for 85% of the data variation. Data mining was limit due to the low sample count and the requirements set for the inclusion of correlated/anti-correlated variables …

Clients' Perceptions Of Their Counseling Experiences For Trauma Related To Anesthesia Awareness (Aa), N. Arlene Magee

LSU New Orleans Theses and Dissertations

Each year in the United States, approximately 81 million individuals receive surgeries in which .1% to .2% (20,000 to 40,000/20 million) experience Anesthesia Awareness (AA). More than 50% of the AA cases result in mental distress or Posttraumatic Stress Disorder (PTSD). Because the percentage of AA cases among surgeries makes it appear to be a rare occurrence, and because it has received rather limited research attention, I decided to undertake an interpretative phenomenological analysis to discover AA clients’ perceptions of their counseling experience, and encourage development of therapeutic interventions to meet their needs.

The broad research question for my study …

Something Like "Yes", Laura J. Mcknight Ms.

LSU New Orleans Theses and Dissertations

No abstract provided.

Six Sigma, Firm Performance And Returns Predictability In Emerging Real Estate Market, Bora Ozkan

LSU New Orleans Theses and Dissertations

This dissertation consists of two essays. First essay investigates Fortune 500 companies that implemented Six Sigma. Since the 1980s, industrial organizations have adopted practices such as Six Sigma to maintain and enhance competitiveness. The purpose of this study is to look at the long run stock price and the operating performance of Fortune 500 companies that were identified to have implemented Six Sigma compared to the overall market performance as well as the performance of industry and size matched firms. Even though our sample firms improved several variables after implementing Six Sigma, their operating performances were not quite close to …

Fraser Fir, Josie A. Scanlan

LSU New Orleans Theses and Dissertations

No abstract provided.

Curated Reasoning By Formal Modeling Of Provenance, Kevin B. Shaw

LSU New Orleans Theses and Dissertations

The core problem addressed in this research is the current lack of an ability to repurpose and curate scientific data among interdisciplinary scientists within a research enterprise environment. Explosive growth in sensor technology as well as the cost of collecting ocean data and airborne measurements has allowed for exponential increases in scientific data collection as well as substantial enterprise resources required for data collection. There is currently no framework for efficiently curating this scientific data for repurposing or intergenerational use.

There are several reasons why this problem has eluded solution to date to include the competitive requirements for funding and …

Cultivating Educational Resilience: An Examination Of Teacher-Student Interactions In The Elementary Classroom, Hazel S. Parker

LSU New Orleans Theses and Dissertations

No abstract provided.

Metabolomics Investigation Of Glyceollins By On-Line Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry And Fungal Metabolite Identification By Thermal Desorption Analysis Coupled With Gas Chromatography-Mass Spectrometry, Syeda Quadri

LSU New Orleans Theses and Dissertations

Metabolomics is an emerging field that entails the detailed characterization of the ensemble of metabolites produced by living organisms; subfields include drug metabolism and natural environmental toxin production. The first part of the dissertation pursued metabolism of glyceollins, i.e., isoflavones produced by soybeans, that are potential cancer therapy agents. In vivo glyceollin metabolites produced in rats were investigated by on-line Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry. An odd-electron fragment ion at m/z 148, formed in violation of the even-electron rule, and diagnostic of the glyceollin backbone, was discovered. Based on this finding, a negative mode precursor ion scanning method was …

Oyster Sustainability Modeling As A Public Resource, Nathan A. Cooper

LSU New Orleans Theses and Dissertations

A simulation algorithm based on biological references points proposed by Powell and Klink (2007) is implemented for predicting the total allowable catch of eastern oysters (Crassostrea virginica) from Louisiana’s coast. The model accepts initial per-square-meter shell mass and oyster size distributions as input. Fishing effort is provided as fractions removed of each resource for each month of the season. The model outputs the expected remaining shell mass and harvests of sack and seed oysters after discrete fishing months. Oyster mortality credits the shell budget, while fishing fractions debit oyster and shell resources. Surviving oysters grow larger along a …

Days Of Forgetful Pirating And Other Stories, Daniel Morales

LSU New Orleans Theses and Dissertations

No abstract provided.